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1. 发明授权

US06542390B2 System and method for regenerative PWM AC power conversion 失效
公开(公告)号：US06542390B2
公开(公告)日：2003-04-01
申请号：US09683422
申请日：2001-12-27
申请人： Paul S. Bixel
发明人： Paul S. Bixel
IPC分类号： H02M700
CPC分类号： H02M5/4585 , H02M7/49 , H02M7/797 , H02P23/06
摘要： A power conversion system for driving a load is provided. The power conversion system comprises a power transformer having at least one primary winding circuit and at least one secondary winding circuit, the primary winding circuit being electrically connectable to an AC power source. The system further comprises at least one power cell, each of the at least one power cell having a power cell input connected to a respective one of the at least one secondary winding circuit. Each power cell also has a single phase output connectable to the load. An SCR arrangement including a gate drive and at least one SCR is connected to the power cell input and a DC bus. An SCR controller is connected to the SCR arrangement and the power cell input. The power cell also has a PWM output stage having a plurality of PWM switches connected to the DC bus and the single phase output. A local modulation controller is connected to the PWM output stage. The SCR arrangement and the SCR controller are configured for controlling a DC bus voltage, the PWM switches are configured for controlling power flow to the single phase output, and the local modulation controller is configured for controlling activation of the PWM power switches. The power conversion system further comprises a master controller in communication with the SCR controller and the local modulation controller of each of the at least one power cell. The master controller is connectable to the load to monitor power flow thereto.

2. 发明授权

US06205042B1 Indirect calculation of bus voltage for voltage source inverter 有权
标题翻译：间接计算电压源逆变器总线电压
公开(公告)号：US06205042B1
公开(公告)日：2001-03-20
申请号：US09427585
申请日：1999-10-27
申请人： Paul S. Bixel
发明人： Paul S. Bixel
IPC分类号： H02M324
CPC分类号： H02M7/49 , G01R31/42
摘要： A method and apparatus for determining accurate stored energy values and effective DC bus voltage values for a voltage source inverter. The technique includes the determination of an effective DC bus voltage for the VSI based on an output voltage and the modulation index of the VSI. Further, an estimated power flow can be integrated to obtain an estimated stored energy, which can then be used to determine the effective DC bus voltage of the VSI. The disclosed technique is accurate in both transient and steady-state conditions, and reduces the effects of long term error accumulation.
摘要翻译：一种用于确定电压源逆变器的精确存储能量值和有效DC总线电压值的方法和装置。该技术包括基于输出电压和VSI的调制指数确定VSI的有效DC总线电压。此外，可以集成估计的功率流以获得估计的存储能量，其然后可以用于确定VSI的有效DC总线电压。所公开的技术在瞬态和稳态条件下都是准确的，并且减少了长期误差累积的影响。

3. 发明授权

US07834577B2 System and method for starting a wound rotor motor 有权
标题翻译：用于启动绕线转子电机的系统和方法
公开(公告)号：US07834577B2
公开(公告)日：2010-11-16
申请号：US11576558
申请日：2005-05-13
申请人： Paul S. Bixel
发明人： Paul S. Bixel
IPC分类号： H02P29/04
CPC分类号： H02P1/26
摘要： A system and method for starting and regulating a wound rotor motor (120) including a phase-controlled SCR converter (150) and a drive circuit (130, 140) having a voltage source inverter (140) and a voltage source converter (130). The SCR converter (150) regulates power transmitted to the drive circuit from the rotor of the motor (120) so that the ratings of the drive circuit are not exceeded.
摘要翻译：一种用于起动和调节包括相控SCR转换器（150）的绕线转子电动机（120）和具有电压源逆变器（140）和电压源转换器（130）的驱动电路（130,140）的系统和方法，。 SCR转换器（150）调节从电动机（120）的转子传递到驱动电路的功率，使得不超过驱动电路的额定值。

4. 发明授权

US08718881B2 Fuel efficient crane system 有权
标题翻译：高效起重机系统
公开(公告)号：US08718881B2
公开(公告)日：2014-05-06
申请号：US13319105
申请日：2009-09-11
申请人： Paul S. Bixel , Marcelo Andres Lara
发明人： Paul S. Bixel , Marcelo Andres Lara
IPC分类号： H02P25/30
CPC分类号： B66C13/22 , H02P5/74 , H02P9/04 , H02P27/06
摘要： A system and method for efficiently regulating the fuel consumption of a variable speed combustion engine used to control loads such as a hoist motor in a mobile gantry crane based on load motor speed commands issued by a crane operator. The system and method can rely on a programmable logic controller to issue engine fuel commands to regulate engine speed based on interpolations derived from data representing the relationship between load motor voltage and engine speed and data representing the relationship between engine speed and engine power capacity. The method may also be used in modified form by combustion engines which need digital fixed speed commands.
摘要翻译：一种用于根据起重机操作者发出的负载电动机速度指令，有效地调节用于控制诸如起重电动机等起重电动机的负载的变速内燃机的燃料消耗的系统和方法。该系统和方法可以依赖于可编程逻辑控制器来发布发动机燃料命令以基于从表示负载电动机电压和发动机转速之间的关系的数据和表示发动机转速和发动机功率容量之间的关系的数据导出的内插来调节发动机转速。该方法也可以以需要数字固定速度命令的内燃机以改进形式使用。

5. 发明授权

US06847531B2 System and method for regenerative PWM AC power conversion 失效
标题翻译：用于再生式PWM交流电源转换的系统和方法
公开(公告)号：US06847531B2
公开(公告)日：2005-01-25
申请号：US10387368
申请日：2003-03-12
申请人： Paul S. Bixel
发明人： Paul S. Bixel
IPC分类号： H02J7/00 , H02M5/458 , H02M7/49 , H02M7/797 , H02P23/06 , H02M7/00
CPC分类号： H02M7/49 , H02M5/4505 , H02M5/4585 , H02M7/797 , H02P23/06
摘要： A power conversion system for driving a load is provided. The power conversion system comprises a power transformer having at least one primary winding circuit and at least one secondary winding circuit, the primary winding circuit being electrically connectable to an AC power source. The system further comprises at least one power cell, each of the at least one power cell having a power cell input connected to a respective one of the at least one secondary winding circuit. Each power cell also has a single phase output connectable to the load. A power switching arrangement including at least one power switch is connected to the power cell input and a DC bus, and a switch controller is connected to the power switching arrangement and the power cell input. The power cell also has a PWM output stage having a plurality of PWM switches connected to the DC bus and the single phase output. A local modulation controller is connected to the PWM output stage. The switch controller is adapted for monitoring and controlling a DC bus voltage according to a predetermined control methodology in both a motoring mode in which power from the AC power source is supplied to the load by the at least one power cell and a regeneration mode in which power from the load is supplied to the AC power source by the at least one power cell. The power conversion system also comprises a master controller in communication with the switch controller and the local modulation controller of each of the at least one power cell. The master controller is connectable to the load to monitor power flow thereto.
摘要翻译：提供用于驱动负载的电力转换系统。电力转换系统包括具有至少一个初级绕组电路和至少一个次级绕组电路的电力变压器，所述初级绕组电路可电连接到AC电源。所述系统还包括至少一个功率单元，所述至少一个功率单元中的每个功率单元具有连接到所述至少一个次级绕组电路中的相应一个的功率单元输入。每个功率单元还具有可连接到负载的单相输出。包括至少一个电源开关的电源开关装置连接到电力单元输入和DC总线，并且开关控制器连接到电力开关装置和电力单元输入。功率单元还具有PWM输出级，其具有连接到DC总线和单相输出的多个PWM开关。本地调制控制器连接到PWM输出级。所述开关控制器适用于在所述至少一个功率单元向所述负载提供来自所述交流电源的功率的电动机模式和根据预定的控制方法的DC母线电压的监视和控制中，来自负载的功率由至少一个功率单元提供给AC电源。电力转换系统还包括与开关控制器和至少一个功率单元中的每一个的本地调制控制器通信的主控制器。主控制器可连接到负载以监测其流量。

6. 发明授权

US06329776B1 Method and apparatus for switching an AC machine between a drive and a power supply 失效
标题翻译：用于在驱动器和电源之间切换AC电机的方法和装置
公开(公告)号：US06329776B1
公开(公告)日：2001-12-11
申请号：US09455395
申请日：1999-12-06
申请人： Paul S. Bixel , Eddy Y. Y. Ho
发明人： Paul S. Bixel , Eddy Y. Y. Ho
IPC分类号： H02P146
CPC分类号： H02P25/024
摘要： A method and apparatus for transferring an AC machine between non volts per hertz drive and a power supply such as supply mains, or a generator. In a transfer procedure, the motor drive is placed in a quasi-voltage mode prior to transfer to permit the output of the motor drive to be synchronized to the output of the power supply. In capture procedure, the output of the drive is preconditioned based on detected states of the AC machine to synchronize the voltage at the terminals of the AC machine with the output of the drive. During the capture procedure, opening of a contactor is detected by comparing the frequency and/or voltage at the terminals of the AC machine with that of the power supply.
摘要翻译：一种在非电压/赫兹驱动之间传送AC电机的方法和装置以及诸如电源或发电机的电源。在传送过程中，电机驱动器在传输之前被置于准电压模式，以允许电机驱动器的输出与电源的输出同步。在捕获过程中，驱动器的输出基于AC机器的检测状态进行预处理，以使AC机器的端子处的电压与驱动器的输出同步。在捕获过程中，通过比较交流电机端子的频率和/或电压与电源的频率和/或电压来检测接触器的打开。

7. 发明授权

US06181099B2 Method and apparatus for correcting DC offset in a frequency to voltage converter and motor drive using the same 失效
标题翻译：用于校正频率与电压转换器和电动机驱动器中的直流偏移的方法和装置
公开(公告)号：US06181099B2
公开(公告)日：2001-01-30
申请号：US09453280
申请日：1999-12-03
申请人： Paul S. Bixel , Robert Villamil , Mark E. Cardinal
发明人： Paul S. Bixel , Robert Villamil , Mark E. Cardinal
IPC分类号： G05B1142
CPC分类号： H02M7/53873 , H02M2007/4803
摘要： A method and apparatus for correcting DC offset in a frequency to voltage converter. An analog frequency to voltage converter receives a frequency signal and outputs a voltage signal having a level that is indicative of the frequency of the frequency signal. The frequency signal is also input into a digital processor which converts the frequency signal into a reference signal that is fed back and summed with the voltage signal. The processor integrates the difference between the reference signal and the output signal to drive the output signal to be equal to the reference signal thereby nullifying DC offset in the output signal. The invention can be applied to controlling the DC bus voltage in a variable frequency AC drive.
摘要翻译：一种用于校正频率到电压转换器中的直流偏移的方法和装置。模拟频率 - 电压转换器接收频率信号并输出具有指示频率信号的频率的电平的电压信号。频率信号也被输入到数字处理器中，该数字处理器将频率信号转换成反馈并与电压信号相加的参考信号。处理器将参考信号和输出信号之间的差分集成，以将输出信号驱动为等于参考信号，从而使输出信号中的DC偏移无效。本发明可应用于控制变频交流变频器中的直流母线电压。

8. 发明申请

US20120059555A1 Fuel Efficient Crane System 有权
标题翻译：燃油效率起重机系统
公开(公告)号：US20120059555A1
公开(公告)日：2012-03-08
申请号：US13319105
申请日：2009-09-11
申请人： Paul S. Bixel , Marcelo Andres Lara
发明人： Paul S. Bixel , Marcelo Andres Lara
IPC分类号： B66C13/18 , B60L1/00 , G06F19/00
CPC分类号： B66C13/22 , H02P5/74 , H02P9/04 , H02P27/06
摘要： A system and method for efficiently regulating the fuel consumption of a variable speed combustion engine used to control loads such as a hoist motor in a mobile gantry crane based on load motor speed commands issued by a crane operator. The system and method can rely on a programmable logic controller to issue engine fuel commands to regulate engine speed based on interpolations derived from data representing the relationship between load motor voltage and engine speed and data representing the relationship between engine speed and engine power capacity. The method may also be used in modified form by combustion engines which need digital fixed speed commands.
摘要翻译：一种用于根据起重机操作者发出的负载电动机速度指令，有效地调节用于控制诸如起重电动机等起重电动机的负载的变速内燃机的燃料消耗的系统和方法。该系统和方法可以依赖于可编程逻辑控制器来发布发动机燃料命令以基于从表示负载电动机电压和发动机转速之间的关系的数据和表示发动机转速和发动机功率容量之间的关系的数据导出的内插来调节发动机转速。该方法也可以以需要数字固定速度命令的内燃机以改进形式使用。

9. 发明授权

US07511446B2 System and method for starting a wound rotor motor 有权
标题翻译：用于启动绕线转子电机的系统和方法
公开(公告)号：US07511446B2
公开(公告)日：2009-03-31
申请号：US11576576
申请日：2005-08-05
申请人： Paul S. Bixel
发明人： Paul S. Bixel
IPC分类号： H02P1/26 , H02M5/458
CPC分类号： H02P27/05 , H02P1/16 , H02P27/16
摘要： A system and method for starting and regulating a wound rotor motor (320) including a phase-controlled SCR converter (350) and a drive circuit (330, 340) having a voltage source inverter (340) and a voltage source converter (330). The SCR converter (350) regulates power transmitted to the drive circuit from the rotor of the motor so that the ratings of the drive circuit are not exceeded. A shorting contactor (390) is employed in various embodiments to increase the efficiency of the circuit.
摘要翻译：一种用于启动和调节包括相控SCR转换器（350）和具有电压源逆变器（340）和电压源转换器（330）的驱动电路（330,340）的绕线转子电动机（320）的系统和方法，。 SCR转换器（350）调节从电机的转子传递到驱动电路的功率，从而不超过驱动电路的额定值。在各种实施例中采用短路接触器（390）以提高电路的效率。

10. 发明授权

US07456601B2 System and method for starting a wound rotor motor 有权
标题翻译：用于启动绕线转子电机的系统和方法
公开(公告)号：US07456601B2
公开(公告)日：2008-11-25
申请号：US11868545
申请日：2007-10-08
申请人： Paul S. Bixel
发明人： Paul S. Bixel
IPC分类号： H02P1/26 , H02H5/04 , H02H7/08
CPC分类号： H02P1/027 , H02P1/02 , Y10T307/76
摘要： A system and method for starting and regulating a wound rotor motor especially during the period between inactivity and a speed determined by the voltage ratings of the drive system. In a first embodiment, a starting resistor and a starting bypass contactor are connected between the rotor of the motor and a low voltage source inverter. In an alternative embodiment, the arrangement of the first embodiment is altered by connecting a shorting contactor on one side to the junction of the voltage source inverter, the starting resistor and the starting bypass contactor so as to be short circuited on the opposite side of the shorting contactor.
摘要翻译：特别是在不活动和由驱动系统的额定电压确定的速度之间的期间，特别是在开始和调节绕线转子电动机的系统和方法。在第一实施例中，起动电阻器和起动旁路接触器连接在电动机的转子和低压源逆变器之间。在替代实施例中，通过将一侧的短路接触器连接到电压源逆变器，起动电阻器和起动旁路接触器的接点来改变第一实施例的布置，以便在第二实施例的相对侧上短路短路接触器。

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